109c434b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2669a5db4SJeff Garzik /*
3669a5db4SJeff Garzik * pata_netcell.c - Netcell PATA driver
4669a5db4SJeff Garzik *
5ab771630SAlan Cox * (c) 2006 Red Hat
6669a5db4SJeff Garzik */
7669a5db4SJeff Garzik
8669a5db4SJeff Garzik #include <linux/kernel.h>
9669a5db4SJeff Garzik #include <linux/module.h>
10669a5db4SJeff Garzik #include <linux/pci.h>
11669a5db4SJeff Garzik #include <linux/blkdev.h>
12669a5db4SJeff Garzik #include <linux/delay.h>
13669a5db4SJeff Garzik #include <linux/device.h>
14669a5db4SJeff Garzik #include <scsi/scsi_host.h>
15669a5db4SJeff Garzik #include <linux/libata.h>
16669a5db4SJeff Garzik #include <linux/ata.h>
17669a5db4SJeff Garzik
18669a5db4SJeff Garzik #define DRV_NAME "pata_netcell"
193b4ba591SAlan Cox #define DRV_VERSION "0.1.7"
20669a5db4SJeff Garzik
21669a5db4SJeff Garzik /* No PIO or DMA methods needed for this device */
22669a5db4SJeff Garzik
netcell_read_id(struct ata_device * adev,struct ata_taskfile * tf,__le16 * id)23d3ae33efSAlan Cox static unsigned int netcell_read_id(struct ata_device *adev,
240561e514SDamien Le Moal struct ata_taskfile *tf, __le16 *id)
25d3ae33efSAlan Cox {
26d3ae33efSAlan Cox unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
270561e514SDamien Le Moal
28d3ae33efSAlan Cox /* Firmware forgets to mark words 85-87 valid */
29d3ae33efSAlan Cox if (err_mask == 0)
300561e514SDamien Le Moal id[ATA_ID_CSF_DEFAULT] |= cpu_to_le16(0x4000);
31d3ae33efSAlan Cox return err_mask;
32d3ae33efSAlan Cox }
33d3ae33efSAlan Cox
34*25df73d9SBart Van Assche static const struct scsi_host_template netcell_sht = {
3568d1d07bSTejun Heo ATA_BMDMA_SHT(DRV_NAME),
36669a5db4SJeff Garzik };
37669a5db4SJeff Garzik
38029cfd6bSTejun Heo static struct ata_port_operations netcell_ops = {
39029cfd6bSTejun Heo .inherits = &ata_bmdma_port_ops,
403b4ba591SAlan Cox .cable_detect = ata_cable_80wire,
41d3ae33efSAlan Cox .read_id = netcell_read_id,
42669a5db4SJeff Garzik };
43669a5db4SJeff Garzik
44669a5db4SJeff Garzik
45669a5db4SJeff Garzik /**
46669a5db4SJeff Garzik * netcell_init_one - Register Netcell ATA PCI device with kernel services
47669a5db4SJeff Garzik * @pdev: PCI device to register
48669a5db4SJeff Garzik * @ent: Entry in netcell_pci_tbl matching with @pdev
49669a5db4SJeff Garzik *
50669a5db4SJeff Garzik * Called from kernel PCI layer.
51669a5db4SJeff Garzik *
52669a5db4SJeff Garzik * LOCKING:
53669a5db4SJeff Garzik * Inherited from PCI layer (may sleep).
54669a5db4SJeff Garzik *
55669a5db4SJeff Garzik * RETURNS:
56669a5db4SJeff Garzik * Zero on success, or -ERRNO value.
57669a5db4SJeff Garzik */
58669a5db4SJeff Garzik
netcell_init_one(struct pci_dev * pdev,const struct pci_device_id * ent)59669a5db4SJeff Garzik static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
60669a5db4SJeff Garzik {
611626aeb8STejun Heo static const struct ata_port_info info = {
621d2808fdSJeff Garzik .flags = ATA_FLAG_SLAVE_POSS,
63669a5db4SJeff Garzik /* Actually we don't really care about these as the
64669a5db4SJeff Garzik firmware deals with it */
6514bdef98SErik Inge Bolsø .pio_mask = ATA_PIO4,
6614bdef98SErik Inge Bolsø .mwdma_mask = ATA_MWDMA2,
67bf6263a8SJeff Garzik .udma_mask = ATA_UDMA5, /* UDMA 133 */
68669a5db4SJeff Garzik .port_ops = &netcell_ops,
69669a5db4SJeff Garzik };
701626aeb8STejun Heo const struct ata_port_info *port_info[] = { &info, NULL };
71f08048e9STejun Heo int rc;
72669a5db4SJeff Garzik
7306296a1eSJoe Perches ata_print_version_once(&pdev->dev, DRV_VERSION);
74669a5db4SJeff Garzik
75f08048e9STejun Heo rc = pcim_enable_device(pdev);
76f08048e9STejun Heo if (rc)
77f08048e9STejun Heo return rc;
78f08048e9STejun Heo
79669a5db4SJeff Garzik /* Any chip specific setup/optimisation/messages here */
809363c382STejun Heo ata_pci_bmdma_clear_simplex(pdev);
81669a5db4SJeff Garzik
82669a5db4SJeff Garzik /* And let the library code do the work */
831c5afdf7STejun Heo return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
84669a5db4SJeff Garzik }
85669a5db4SJeff Garzik
86669a5db4SJeff Garzik static const struct pci_device_id netcell_pci_tbl[] = {
872d2744fcSJeff Garzik { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
882d2744fcSJeff Garzik
89669a5db4SJeff Garzik { } /* terminate list */
90669a5db4SJeff Garzik };
91669a5db4SJeff Garzik
92669a5db4SJeff Garzik static struct pci_driver netcell_pci_driver = {
93669a5db4SJeff Garzik .name = DRV_NAME,
94669a5db4SJeff Garzik .id_table = netcell_pci_tbl,
95669a5db4SJeff Garzik .probe = netcell_init_one,
96669a5db4SJeff Garzik .remove = ata_pci_remove_one,
9758eb8cd5SBartlomiej Zolnierkiewicz #ifdef CONFIG_PM_SLEEP
9830ced0f0SAlan .suspend = ata_pci_device_suspend,
9930ced0f0SAlan .resume = ata_pci_device_resume,
100438ac6d5STejun Heo #endif
101669a5db4SJeff Garzik };
102669a5db4SJeff Garzik
1032fc75da0SAxel Lin module_pci_driver(netcell_pci_driver);
104669a5db4SJeff Garzik
105669a5db4SJeff Garzik MODULE_AUTHOR("Alan Cox");
106669a5db4SJeff Garzik MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
107669a5db4SJeff Garzik MODULE_LICENSE("GPL");
108669a5db4SJeff Garzik MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
109669a5db4SJeff Garzik MODULE_VERSION(DRV_VERSION);
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